For the patients who are suffering from severe myopia (dioptres over -12.00 union PRK surgery is not suggested. There are other contraindications that include:
● Pregnant women ● Patients under the age of 18 ● Other ocular diseases such as glaucoma, keratoconus or dry eye syndrome ● Patients with a history of side effects from steroids ● Diabetes ● Rheumatoid arthritis ● Corneal ulceration ● Corneal dystrophy type II
Number Of Trips Abroad
Discharge From Hospital
Overnight stay is not required
A couple of days before the surgery, the patients should stop wearing contact lenses. For at least 4 days before the PRK surgery, the patient should avoid toric contact lenses. For at least a week before the PRK surgery, hard gas permeable lenses should be avoided as well.
How It Is Performed
Generally, the PRK eye surgery is performed under local anesthesia, and the operation lasts for only 10-15 minutes.
To the patient's eyes, numbing eye drops are applied and to keep the patient’s eye open a medical tool is used. In order to eliminate microscopic amounts of tissue from the cornea, an excimer laser is used, correcting the refractive errors properly. The practice is performed for each eye independently. Sometimes it is performed on the same day. Some of the patients choose to have the second operation for the other eye a week or two after the first operation. After the first operation, the treated eye is covered with a bandage contact lens that allows the epithelial cells to grow back again. The bandage would be removed in a couple of days.
The recovery period of PRK eye surgery is very short. Right after the operation, the patients can go back to work or their normal activities. After the operation, the patient’s sight would be improved, but the cornea still needs to heal itself, which means that the patient might experience blurriness.
In a week after the operation, the patient would be noticing substantial vision improvement and in around 4 weeks, the patient's sight would be at its best condition. During the recovery period, the patients should avoid touching or rubbing their eyes since it might interfere with the recovery process. During the recovery period, swimming in the ocean and doing contact sports are not recommended.
PRK eye surgery has several risks and complications that include:
● Under correction or over correction ● Recurrence of myopia ● Scarring ● Reduced vision in low light● A permanent increase in sensitivity to light ● Infection in the eye region ● Revision surgery
PRK eye surgery has several side effects which might involve redness around the eyes, itchiness and dryness in the eyes and temporary increased sensitivity to the light. Also, after the procedure, some patients might experience pain as well.
PRK eye surgery has a success rate between 80 to 98% However, the success rate is depended on the condition the patient is suffering from
Before And After
Even after the photorefractive keratectomy or PRK eye surgery, it is possible for some of the patients to still rely on reading glasses. A month after the operation, the best possible results would be noticeable.
- Is PRK surgery painful? No, the patients would only experience discomfort after the operation.
- Is PRK surgery safer than LASIK? PRK surgery and LASIK are equally safe operations; the only difference between them is that PRK surgery is bladeless.
- What are the chances of developing complications from PRK surgery? The complication rate of PRK surgery are very rare which is 1.7%.
This content is written and reviewed by our medical content team in September, 2019.